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BartSMP [9]
3 years ago
13

Describe what happens to the molecules as water goes from ice to liquid to vapor. Be sure to explain what happens to the tempera

ture during the phase changes.
Chemistry
2 answers:
guapka [62]3 years ago
8 0
They speed up and move farther apart, this is as it heats up. hope this helped :3
stellarik [79]3 years ago
6 0
When water changes form the molecules are the ones most responsible. When water molecules get hot, the molecules expand. Or they spread out, moving quickly. When they cool they become compact. When temperatures reach 32F or 0C water becomes solid because the molecules come close together and stop moving. Because there is no movement you can't run your fingers through the molecules, it's<span> a solid.  </span>
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Calculate the molarity of a solution if there are 1.5 mol of NaCl in 2.3 L of solution
frosja888 [35]

Answer:

0.6522 mol/L.

Explanation:

<em>Molarity is defined as the no. of moles of a solute per 1.0 L of the solution.</em>

<em />

M = (no. of moles of solute)/(V of the solution (L)).

<em>∴ M = (no. of moles of solute)/(V of the solution (L)) </em>= (1.5 mol)/(2.3 L) = <em>0.6522 mol/L.</em>

7 0
3 years ago
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AlCl3 + Na NaCl + Al Did Cl change oxidation number?
gizmo_the_mogwai [7]
Yes. If this is the balanced equation:

AlCl3 + 3Na —— 3NaCl + Al

then Al was reduced from a 3+ oxidation (to neutralize the 3- from the chlorine) to a 0 oxidation (elemental ground state).
6 0
3 years ago
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Give the reason for the evaporation of the solution to dryness with 6 m hcl in the first procedure of the copper-arsenic group a
SCORPION-xisa [38]
<span>
Evaporation occurred between the reaction of the hydrochloric acid and the arsenic group because there is a formation of gas. A liquid is cooled if condensation exceeds evaporation. This is because the cooling of the liquid decreases the kinetic energy of the molecules. Their movement is being restricted by the colder temperature. The molecules tend to be closer with each other. Also, because of their restricted movement, the liquid may turn into solid due the colder temperature. An example of this is the cooling of liquid water by placing it into the refrigerator into solid water (ice).</span>
4 0
3 years ago
Based on the reaction, identify the product.
amid [387]
The answer is Be ..:;
7 0
3 years ago
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An independent variable is....
Irina18 [472]

Answer:

B - What we change

Explanation:

Dependent Variable - What we measure

Control Variable - what stays the same

Conclusion - what we conclude

<em>Hope</em><em> </em><em>this</em><em> </em><em>can</em><em> </em><em>Help</em><em>!</em>

<em>:</em><em>D</em>

5 0
3 years ago
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